TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
Page 559 of 779
turned to the “ON” position, and the engine started and operated not over 1200 revolutions per minute (RPM) until observed fuel return is purged of diesel fuel and the system filled with preservative oil. b. All openings such as exhaust manifolds, air intakes, breathers, etc. shall not be sealed. Note. The engine requires no special de- preservation procedures to be made serviceable. 8-12. Engine Installation a. The turbosupercharger outer shroud plate assembly and the intermediate shroud plate on both the right and left bank must be removed, in order to provide proper clearance for the engine in the container. On engines which have the oil filler tube installation at the rear of the engine, the upper portion of the two piece tube must be disconnected and removed. Refer to figure 4-18 through 4-21 and 4-23 for removal of the shroud plates and upper portion of the oil filler tube. The parts that have been removed from the engine, must be packaged separately to prevent damage and secured to the engine or container prior to assembling container halves. b. Inspect engine thoroughly for loose or missing parts or components. Check to be sure engine has been properly identified as having been preserved for storage. Install the two engine mounting brackets on the three centrally located oil pan mounting bosses on either side of the engine (fig. 8-8). Install the six bolts from the underside of the oil pan and assemble a washer and a nut on each bolt. Tighten securely. The engine mounting brackets must be installed on the engine prior to installing engine in container. c. Loosen but do not remove the six nuts securing transmission adapter support flange to the container cross member (fig. 8-10). Using engine lifting multi-leg sling - 4910-919-2884, carefully guide the engine into position on the engine mounting bracket hold-down studs in the container. Aline the rear transmission adapter support flange screw holes with the screw holes in the engine transmission adapter and install six 1¾ in. screws and lock washers starting with the upper right and left screw holes on the support flange. Install one 1½ in. screw and lock washer in the remaining screw hole in the lower center of the support flange. Tighten all screws securely. Install the four nuts and lock washers on the engine mounting bracket hold-down studs and securely tighten engine-to-container engine mounting flange. Tighten the six nuts that secure the transmission adapter support flange. Position parts that have been removed from the engine and tape or strap separately to engine and support cross members. Note. Engines that are being returned for rebuild should be securely mounted in container. The loose parts that have been removed from the engine should also be secured by some means to prevent shifting and causing additional damage to the engine and container during transit. Figure 8-10. Transmission adapter - installed view. d. Fill each of the two desiccant baskets (fig. 8- 9) mounted on the side wall of the container, with eight bags of desiccant (MIL-D-3464, 16 unit bags, Class 1). Apply sealing compound conforming to MIL-I-8660 on the sealing gasket and position the sealing gasket on the container flange. Assemble the upper section of the container to the lower section. Torque tighten assembly bolts to 90-105 lbs ft. e. When assembly is complete, pressurize the container 5 to 7 psi of dehydrated air and allow container to stand for a minimum of twelve hours to be sure air pressure is maintained. f. Periodic inspection of containers that are to be stored for extended periods of time should be made to determine if the pressure of moisture is evident in the container. This is determined by the humidity indicator located in the recessed insert on the end of the container (fig. 8-7). Under moisture-free conditions, the indicator will show blue in color. As the presence of 8-17